as John Stuart
as Marx, Aushilfsdiener
as Colonel Henry Bouquet
as Archive Footage (Robot Monster)
as Nicholas Bederaux, Sr. (uncredited)
as Dr. Hofer
as Jan
as Harry Webber, genannt "Juwelen Harry"
as Felix, sein Sohn
as J.M. Hennick
as Colonel Duval
as Papa Sante (uncredited)
as Kaiser Wilhelm II (uncredited)
as Mr. Duchin
as Herr Gosting
as Biller, gegnerischer Mittelstürmer
as Druhar (uncredited)
as Gen. Seydlitz
as Raumert, Brauereibesitzer
as Martin Krafft
as Ernst Steinhauer
as Staff Officer (uncredited)
as Arthur Dreyer
as Mr. Malborn
as Peter Vantine / Carl Dudley
as Col. von Arnheim
as Impresario
as Minister Hagen
as Stanislaw Maniusko
as Gen. Foeldessy
as Herr Koenig
as Boris
as Von Eltzen
as Captain of Submarine
as Rolf Sander
as The Professor
as Submarine Commander
as Dr. Harry Edwards
as Zahnstocher-Jeff
as Kelly
as Kroll
as Jürg Asmussen
as Rabob
as Policeman
as Manager
as Doctor
as Horseman
as Karl Borgen
